Hi I\'m trying to follow a tutorial on angular but the tutorial was made in September. I believe the person used angular-cli 1.3.2. I\'m not sure which version of rxjs he wa
In rxjs@6 you can use from as standalone function:
import { from } from 'rxjs';
See also migration to rxjs6 guide
https://github.com/ReactiveX/rxjs/blob/master/docs_app/content/guide/v6/migration.md#import-paths
UPDATE
You need to switch to pipe syntax, make sure you import all operators used from rxjs/operators. For example:
import { map, filter, catchError, mergeMap } from 'rxjs/operators';
DOCUMENTATION